
export default {
      dateFormat: function(time,f=null) {
	
		                 let date = new Date(time);
		                 let year = date.getFullYear();
		                 // 在日期格式中，月份是从0开始的，因此要加0，使用三元表达式在小于10的前面加0，以达到格式统一  如 09:11:05
		                 let month = date.getMonth() + 1 < 10 ? "0" + (date.getMonth() + 1) : date.getMonth() + 1;
		                 let day = date.getDate() < 10 ? "0" + date.getDate() : date.getDate();
		                 let hours = date.getHours() < 10 ? "0" + date.getHours() : date.getHours();
		                 let minutes = date.getMinutes() < 10 ? "0" + date.getMinutes() : date.getMinutes();
		                 let seconds = date.getSeconds() < 10 ? "0" + date.getSeconds() : date.getSeconds();
						 if(f=='datetime'){
		                 // 拼接
		               return year + "-" + month + "-" + day + " " + hours + ":" + minutes + ":" + seconds;
						 }else if(f=='date'){
							 
							 return year + "-" + month + "-" + day; 
						 }else{
							 return year+month+day+hours+minutes+seconds; 
						 }
		                
		             }, 
	 }